Class-T Fuses - JLLS Series

Littelfuse's JLLS series fast-acting fuses are one of the most compact fuses available in ratings above 30 amperes which is less than one-third the size of comparable Class-R fuses. The JLLS fuses are used for short-circuit protection of drives and surge-sensitive components. When rated in accordance with the NEC, these fuses provide fast-acting overload and short-circuit protection for non-inductive circuits and equipment. Main switches containing JLLS fuses can be used to provide compact protection for meter stacks. It should be noted that molded case circuit breaker load centers and panelboards have increased interrupting ratings when "series rated" with Littelfuse Class-T fuses. JLLS fuses are available in non-plated and silver-plated terminations.

Features

• Safety feature provides reliable interruption of all overcurrent up to 200,000 A
• Reduces damage caused by heating and magnetic effects of short-circuit currents, extending the equipment's lifecycle
• Provides fast short-circuit response for equipment requiring fast overload protection